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July 21, 1931. w, Y T 1,815,496

IGNITION APPARATUS Original Filed May 23, 1922 4 Sheets-Sheet 1 I/Ma.

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IGNITION APPARATUS Original Filed May 25, 1922 4 SheeIs-Sheet 3 ,//7 6-05 1 9 fgg m4 amnion Cuba/neg July 21, 1931. w, CHRYST 1,815,496

IGNITION APPARATUS Original Filed May 23, 1922 4 Sheets-Sheet 4 Fi. 2 is asectional view thereof taken on 2 .of Fig.1.

Patented July 21, 1931 UNITED "STATES PATENT OFFICE WIL IAM A. onRYs'r, or DAYTON, OHIO, ASSIGNOR T DELOO REMY CORPORATION, OF DAmN, 01110, A QORPORATIO or DE AWARE IGNITION APPARATUS Original application filed Kay 28, 1922, Serial No. 563,145, now Patent No. 1,678,934, dated July 31, 1928. Divided and application flied Kay 26, 1925, Serial No. 33,072. Divided and this application filed October a, 1927. Scria1No.'224,-187.

This invention relates to ignition apparatus for internal combustion engines and is a division of Serial No. 33,072, filed May 26,

1925, which is a division of Serial No. 563,145,

filed May 23, 1922, now Patent No. 1,678,934,

July 31, 1928.

This invention includes among lts ob ects the provision and novel means for facilitating the connection between the ignition timer contacts, the ignition coil and the condenser.

Another object is to provide a novel means for varying the extent to which the movable contact is separated from the stationary con-. tact.

Further objects and advantages of the present invention willbe apparent from the following description, reference being had to the accompanying drawings, wherein a preferred form of embodiment of the present invention is clearly shown.

In the drawings:

Fig. 1 is a plan view of an apparatus em- .bodying the present invention mounted On .an

engine of which a part only is shown.

line

Fig. 3 is 'a longitudinal sectional view of cylindrical condenser.

Fig. 4 is a plan viewg a part of the ap 80 paratus detached from e on he.

Fig. 5 is a side view thereo Fig. 6 is a plan view similar to Fig. 4 with the distributor head removed.

Fig. 7 is a plan view of the breaker mechanism and condenser.

. Fig. 8 is a plan view of the instrumentalities for controlling the spark timing mecha- IllSlIl.

"Fig. 9 is a plan view of the fixed contact support.

In these drawings, 10 is an engine having cylinders shown diagrammatically at 11; 12 is a cam shaft having a journal 13 supported in a bearing 14, and 15 is a s iral gear formed in the cylindrical face of t e journal. 16 is a vertical metal distributor cup having a cylindrical lower end 17 projecting into the engine crank case 18. The distributor cup seats on a metal plate 19 resting on the crank case 18 and having a lateral projection 20 fastened to the crank case by a bolt 2l-and a downwardly projecting boss 22 seating in a hole (not shown) in the upper surface of the crank case. Bolt 23 passing through an arcu'ate slot 24 in a lateral projection 25 in the plate 19 and through an ear 26 on the dising with the worm 15 cut on the cam shaft journal. Wick 30 located in an axial hole in the shaft 27. conducts lubricant from the crank case to lateral holes 31 extendin to the 05 surface of the shaft. The upper sur aces of a shoulder 32, the central bearing 28, and a radial lug 33 formed integral with the bearing and wall of the cup are machined to the samehorizontal plane. A washer 34 7o seating on the top of the bearing 28 and pressed into a circumferential groove 35 formed in the'shaft supports the latter in operative position with the gears in mesh and the upper portion of the shaftprojecting 76 above the bearing 28.

Vertical pin 36 secured to the shoulder 32 and projecting into the distributor housing is formed with a collar 37 forming an axis for a fixed contact arm 38, a flange 39 supa0 porting a hollow spooled insulating bus ing 40 and a reduced upper portion 41 forming an axis for the bushing.

Contact arm 38 rests on shoulder 32 and radial lug 33 as best shown in Fig. 7, and is formed with a notched outer end 42 embracing the collar 37, an elongated aperture 43 adjacent the opposite end of the arm and an upturned rojection 44 supporting fixed contact 4.5. crew 43a passes through the aperture 43 into lug 33 and secures the fixed contact arm in adjusted position. A movable contact arm 46 of channel-shape cross section supports a contact 47 and one endthereof is formed around the bushing 40. A plate 48 is secured to the inner surface of the mov able contact arm, and supports a cam follower 49 adapted to engage cam 50 ournalled upon the projecting end of the shaft 27, and the washer 34.

The movable contact arm is yieldingly 7 urged toward the fixed contact arm by a leaf spring 51 bent around and seating in the channeled end of the contact arm '46 and having its end 52 bent to engage .the hook shaped end of plate 48. The other end of the spring rests in a metal plate 53 of channel-shape cross section. This plate is held in position by the spring 51 and by an insulating plug 54 attached to the p ate and projecting into a hole 55 inthe wall of the distributor housing. Sprin '51 and plate 53 electrically connect the reaker arm 46 with a wire 56 which is fastened to a clip 57 provided by the plate. 58 is an insulating plate resting on the shoulder32 and held in position .by the insulating plu 54 which passes through a hole in the p ate.

Cable 56 passes through an insulating tube 59 mounted axially in a cylindrical condenser 60. (Figs. 2, 3 and 7.) This condenser is formed with a cylindrical casing 61, a relatively small inner end plate 62 adapted to pass through an opening in the side wall of the distributor cup, and a larger outer end plate 63 seating against a. boss-64 on the outer surface ofthe distributor cup and fastened to the latter by a screw 65 pass'-. ing through an opening 66 in an car 67 formed on the cover, and threaded into the cup. Adjacent the inner end of the condenser is a lead 68 connecting one of the condenser foils with the cable 56 which is bared at the point of connectionas shown in Fig. 3.- The other foil is connected by a wire 69 to ground at the opposite end of the condenser, thus placing the condenser in arallel with the contact points '45 and 47 w ich are grounded on the lug 33. Cable 56 projects through the condenser to the outside of the distributor cup and the condenser and cable may be completely detached from the cup by removin the screw 65, moving the spring 51 tower the center of the cup, sliding the plug 54 inwardly from the opening 55, and moving the condenser and cable outwardly through the opening in. the boss 64.

70 is a distributor rotor mounted upon the top shaft 27 and detachably secured in a predetermined angular position thereon by a hollowboss 71 on the,lower side of the rotor 70 and: a key 72 integral with the rotor and receivedv by a transverse slot 73 in the shaft end. Pressed into lugs'74 at the ends of the rotor arms 75 and 76 are downwardly projecting pins 77 and 78 supporting a plate 79 centrally apertured to receive the upper end of cam 50 and formed with opposite disposed upturned lugs 80 and 81. Pins 77 and 78 carry, res ectively, bushings 82 and 83 and transverse y disposed weights 84 and 85 rotatably mounted on the pins and normally held in proximity to the cam by springs 86 and 87. Spring 86is connected at its ends to lug 80 on plate 79 and a pin 88 cam 50-by radial arms 90 and 91, respectively, I projecting into diametrically disposed slots 92 and 93 in the sides of the cam.

' The shaft rotates the distributor rotor which in turn rotates the plate 7 9 and weights 84 and 85"which swing outwardl by centrifu al force about the axes 77 and 7 The weights are supported by shoulders 84a and 85a formed on the plate 79 adjacent the pins 77 and 78. The weights also slidably rest on raised ortions or lugs 94 formed on the upper sur ace of the plate 79 (Fig. 2), by dent-ing the same or any other suitable manner, 7

95 is a radially disposed resilient conductor mounted upon the rotor arm 76. Distributor head 96 is mounted upon the distributor cup by spring clips 97 and carries an annular rowof sockets 98 adapted to be connected-by cables to the spark plugs of an engine'and a central socket 99 electrically.

connected to spring 95 by a spring pressed plunger 100. The conductor 95 carries a button 95a for engaging the under surfaces of the sockets 98.

A laterally extending bracket 101 formed integrally with the distributor cup forms the upper end wall of an ignition coil 102, having a cylindrical casing 103, and, a lower end wall 104. The coil includes magnetizable end plates 105 and 106 clamped against insulating cups 107 and 108 enclosing the ends of a magnetizable core 109, a rimary winding 110 and a secondary win ing 111. One of the end plates 105 is secured to casing 103 by rivet 112. Nuts 113 and 114 threaded on a rod 115 extending through the core, secure the end plates in position Nut 116 secures 8, respective y.

the lower end wall 104 to the casing 103 and nected to the other end 1105 of the primary winding and is adapted to be connected to a battery or other source of current. A terminal 120 connected to one end of the secondary winding 111 is connected by cable 121 to the s0cket'99 on the distributorhead. The other end of the secondary winding 111 is grounded at 122.,

The present invention provides. unitary coil and ignition timer structure from which the coil is readily removable without disturbing the remaining parts of the apparatus. The coil may be rotated, after loosening nut 117 so that the terminals on the coil may be brought into the most convenient loca tion. One end cover of the coil is provided by the ignitiontimer cup' thus eliminating a se arate part. V

T epresent construction ellmmates the terminal screws and other w1re devices usually formed 'in ignition timers. Only one wire s used to connect the ignition coil to the insulated contact of the timer and the condenser to this contact. The mounting of the condenser upon the timer cup grounds the condenser and also secures the wire which connects the timer and coil. The terminal clip attached to this wire is held in position within the timer cup and in electrical connection with the breaker lever by the leaf spring which urges the breaker lever toward the cam. These are some of the features by which the simplification of construction and reduction of the cost of manufacture of igni-' tion apparatus is accomplished.-

Whilethe form of embodiment of the present invention asherein' disclosed, constitutes a preferred form, it is to be understood that other forms might be adopted, all coming within the scope of the claims which follow. a

What is claimed is as follows:

1. An ignition apparatus, comprising in combination,-- a cup-shaped housing having openings in awall thereof; a condenser provided with a hollow core, insertable into said cup through one of the openings in its wall; a wire extending through the hollow core and in electrical .connection with one foil of the condenser; a clip secured to the end of the wire, and provided witha plug of insulating material extending into the other openin in the wall of the cup; an interrupter including stationary and movable contacts in said cup, and a leaf spring engaging the movable contact and the clip electrically connecting them and for holding the plug in the opening and the movable contact in yieldable engagement with the stationary contact.

2. An ignition apparatus, comprising in combination, a frame providing a cup-sha ed housing provided with apertures an a bracket portion extending from the housing; said bracket portion being adapted to support a coil; a condenser having a hollow core, insertable into said cup throu h one of its apertures; a conductor exten ing through the hollow core and in electrical connection with one foil of the condenser, one end of said wire being adapted for connection to a terminal of the coil; a clip including-an insulating plug, secured to the other end of the conductor, said plug extending into the other aperture in t e cup portion; an interrupter; a leaf spring having its one end engaging the interrupter and its other end yieldmgly engaging the clip of the conductor whereby the coil, condenser and interrupter are electrically connected.

3. An electrical condenser for paralleling the contacts of an ignition timer-interrupter enclosed in a metal housing upon which one of the contacts is grounded,.said condenser comprising in combination, two foils insulated from each other, a metal case enclosin the foils, a wire passing throu h the case an extending from diflerent wal s thereof, one end of the wire being electrically connectible with the insulated contact of the timer and the other end with an ignition coil, means electrically connecting one of the foils with the case, means electrically connecting the other foil with the wire at a point thereof within thecase, and means for mechanically and electrically connecting the case with the housing.

4. An electrical condenser for paralleling the contacts of an ignition timer-interrupter enclosed in a metal housing upon which one of the contacts is grounded, said condenser comprising in combination, two foils insulated from each other, a case having a metal from each other wound upon said core, an

insulated wire passing through said core and having one end electrically connectable with an ignition coil and the other with the insulated contact of the interrupter, said conductor having a bare portion within the core,

a conducting lead electrically connectin the bare portion with one of the condenser oils, and ineans provided by the condenser for electrically connecting the other foil with the timer housing.

6.- An electrical condenser for paralleling the contacts of an ignition timer-lnterrupter enclosed in a metal housing upon which one of the contacts is grounded, said condenser comprising, in combination, a tubular core, condenser foils wound upon the core and insulated from each' other, a tubular metallic case enclosing the core and foils, end closures for the case, means located adjacent one of the end closures for connecting one of the foils with the case, an insulated wire for making connection with the insulated contact of the timer-interrupter passing through said end closure and through said tubular core, means adjacent said other end closure for connecting the other foil with the wire, and means for attachin the case to the housin of the interrupter and for making an electrical connection therewith.

7 An electrical condenser for paralleling the contacts of an ignition timer-interrupter enclosed in a metal housing upon which one of the timer contacts is grounded, said condenser comprising, in combination, ,a tubular core, condenser foils wound upon the core and insulated from each other, a tubular me-' tallic case enclosing the core and foils, end' closures for the case, means located adjacent one of the end closures for connecting one of the foils'with the case, an insulated. wire for making connection with the insulated contact of the timer-interrupter, said Wire passing through said end closure and through said tubular core, a conducting part located adj acent' said other end closure and continuing from said wire and having a portion thereof bent so as to connect with the other foil,- and means for mechanically and electrically connecting said condenser case with the timer housing;

In testimony whereof I hereto aflix my signature. WILLIAM A. CHRYST. 

